[ruby/rdoc] Remove trailing spaces to fix CI

https://github.com/ruby/ruby/actions/runs/3199301563/jobs/5224898228

369e4fa32d
This commit is contained in:
Takashi Kokubun 2022-10-06 11:56:04 -07:00
parent 3df904d1a8
commit 1f2c84de83
No known key found for this signature in database
GPG Key ID: 6FFC433B12EE23DD